Zobrazeno 1 - 10
of 126
pro vyhledávání: '"GELLER, MARTIN"'
Autor:
Zöllner, Marcel, Mannel, Hendrik, Rimek, Fabio, Maib, Britta, Schwarz, Nico, Wieck, Andreas D., Ludwig, Arne, Lorke, Axel, Geller, Martin
In quantum dots (QDs) the Auger recombination is a non-radiative scattering process in which the optical transition energy of a charged exciton (trion) is transferred to an additional electron leaving the dot. Electron tunneling from a reservoir is t
Externí odkaz:
http://arxiv.org/abs/2310.13327
Autor:
Kleinherbers, Eric, Mannel, Hendrik, Kerski, Jens, Geller, Martin, Lorke, Axel, König, Jürgen
Publikováno v:
Phys. Rev. Res. 5, 043103 (2023)
The use of single electron spins in quantum dots as qubits requires detailed knowledge about the processes involved in their initialization and operation as well as their relaxation and decoherence. In optical schemes for such spin qubits, spin-flip
Externí odkaz:
http://arxiv.org/abs/2305.15502
Autor:
Kerski, Jens, Mannel, Hendrik, Lochner, Pia, Kleinherbers, Eric, Kurzmann, Annika, Ludwig, Arne, Wieck, Andreas D., König, Jürgen, Lorke, Axel, Geller, Martin
Single electron tunneling and its transport statistics have been studied for some time using high precision charge detectors. However, this type of detection requires advanced lithography, optimized material systems and low temperatures (mK). A promi
Externí odkaz:
http://arxiv.org/abs/2112.07417
Autor:
Mannel, Hendrik, Kerski, Jens, Lochner, Pia, Zöllner, Marcel, Wieck, Andreas D., Ludwig, Arne, Lorke, Axel, Geller, Martin
The Zeeman-split spin states of a single quantum dot can be used together with its optical trion transitions to form a spin-photon interface between a stationary (the spin) and a flying (the photon) quantum bit. Besides long coherence times of the sp
Externí odkaz:
http://arxiv.org/abs/2110.12213
Autor:
Kleinherbers, Eric, Stegmann, Philipp, Kurzmann, Annika, Geller, Martin, Lorke, Axel, König, Jürgen
Publikováno v:
Phys. Rev. Lett. 128, 087701 (2022)
Time-resolved studies of quantum systems are the key to understand quantum dynamics at its core. The real-time measurement of individual quantum numbers as they switch between certain discrete values, well known as random telegraph signal, is expecte
Externí odkaz:
http://arxiv.org/abs/2106.12502
Autor:
Lochner, Pia, Kerski, Jens, Kurzmann, Annika, Wieck, Andreas D., Ludwig, Arne, Geller, Martin, Lorke, Axel
Publikováno v:
Phys. Rev. B 103, 075426 (2021)
We demonstrate by time-resolved resonance fluorescence measurements on a single self-assembled quantum dot an internal photo-effect that emits electrons from the dot by an intra-band excitation. We find a linear dependence of the optically generated
Externí odkaz:
http://arxiv.org/abs/2010.10924
Autor:
Lochner, Pia, Kurzmann, Annika, Kerski, Jens, Stegmann, Philipp, König, Jürgen, Wieck, Andreas D., Ludwig, Arne, Lorke, Axel, Geller, Martin
Auger recombination is a non-radiative process, where the recombination energy of an electron-hole pair is transferred to a third charge carrier. It is a common effect in colloidal quantum dots that quenches the radiative emission with an Auger recom
Externí odkaz:
http://arxiv.org/abs/1911.04789
We report on mask-less, high resolution etching of diamond surfaces, featuring sizes down to 10 nm. We use a scanning electron microscope (SEM) together with water vapor, which was injected by a needle directly onto the sample surface. Using this ver
Externí odkaz:
http://arxiv.org/abs/1903.10824
Time-resolved resonance fluorescence (RF) on a single self-assembled quantum dot (QD) is used to analyze the generation and capture of photoinduced free charge carriers. We directly observe the capture of electrons into the QD in an intensity reducti
Externí odkaz:
http://arxiv.org/abs/1604.07605
In quantum dots (QDs) the Auger recombination is a non-radiative process, where the electron-hole recombination energy is transferred to an additional carrier. It has been studied mostly in colloidal QDs, where the Auger recombination time is in the
Externí odkaz:
http://arxiv.org/abs/1603.05140